Caulking Guns, Tile Cutters & Sealants

Why do Diamond Hole Saws need constant water cooling when drilling holes for plumbing pipes in porcelain tile?

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 Correct IncorrectExtreme dry friction generates heat that melts the nickel/braze matrix holding the industrial diamond grit, ruining the hole saw and cracking the tile.

Why do Diamond Hole Saws need constant water cooling when drilling holes for plumbing pipes in porcelain tile?

• To wash away porcelain dust and keep the diamond braze matrix from overheating and stripping
• To soften the porcelain chemically
• To lubricate the drill motor brushes
• To prevent electric shocks from the battery